Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89b305332c39b0b…

MALICIOUS

PDF

40.5 KB Created: 2020-08-13 03:05:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa8adfdf157519cc53cabbb904b9131c SHA-1: d1c182a82a9f5fa1478268cb315766f39979777f SHA-256: c89b305332c39b0bd9aac7b81df58edb8af89e8dab356f04d5a1ce2fee46cf52
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=basic+english+language+test+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on cdn.shopify.com but also include potentially malicious domains. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=basic+english+language+test+pdf In PDF document text
    • http://somukoto.coastaldanceclub.co.uk/uploads/1/3/1/4/131408899/mezanamelexos_woludumivapur_tutegotixuw_zebexerolukofe.pdfIn PDF document text
    • http://files.moveovermsa.org/uploads/1/3/1/6/131606631/8576641.pdfIn PDF document text
    • http://files.solutions2050.com/uploads/1/3/2/7/132740620/acd8710342bcf6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2781/files/penyebab_aterosklerosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5967/5290/files/proverbes_anglais_franais.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5801/1035/files/tugan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/wevitidefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5815/9006/files/26197542780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4900/0864/files/nakugewotarudumupirizagon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3685/8776/files/93939456566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8765/8150/files/albeniz_suite_espanola_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6257/4750/files/87266036423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8289/0918/files/uk_cabinet_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/regovezole.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005366.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5366 5140 bytes
SHA-256: 6992438a95b614ecf163d3f6f3e5c93cd0c296630d13b4e308ce38dd5a31368f
font_01_sfnt_off000064d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D7 10084 bytes
SHA-256: a0ac5c731558ec48ba7b7500fa43e32dceb4ad692107779c3b22fd0e3a694fc7
font_02_sfnt_off00008758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8758 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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